clark



(No Model.) 2 sheets-sheet 1.

R. W. CLARK.

- STEAM TRAP.

N0. 466,324. Patented Jan. 5, 1892.

zal

All

Witnesses @MJ/MW--- .Q /4%- arneys.

(No Model.) 2 sheets-sheet 2.

R. W. CLARK.

STBAM'TRAP.

No. 466,324. Patented m1551892.

' Ill I -B Witnesses: d Inventur /mw-- mgzfmm UNITED STATES` 'PATENTOFFICE.

ROBERT W. CLARK, OF BUFFALO, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS,TO LIZZIE CLARK, OF SAME RLACE.

sTlEAIvI-Tnrw.` I

SPECIFICATION forming part of Letters Patent No. 466,324, dated January5, 1892. Applicafibn ned December 11, 1890. serial No. 374,268. (No maarTo ,all whom it may concern:

Be it known that I, ROBERT W. CLARK, of Buffalo, in the county of Erieand State of New York, have invented certain new and useful Improvementson Steam-Traps; and I do hereby declare that the following descriptionof my said invention, taken in connection with the accompanying sheetVof drawings, forms a full, clear, and exact specification, which willenable others skilled inthe art to which it appertains to make and usethe same.

This invention has general reference to improvements in steam-traps; andit consists, essentially, in the novel and peculiar combination of partsand details of construction, as hereinafter first fullyset forthand'described, and then pointed out in the claims.

vIn the drawings already referred to, which serve to illustrate my saidinvention more fully, Figure l is an elevation of my improvedsteam-trap. Fig. 2 is a plan of the same with the cover removed. Fig. 3is a longitudinal sectional elevation in line a: of Fig. 2. Fig. 4 is asimilar view of a portion of the trap, showing the regulating-valveclosed.

Like parts are designated by corresponding letters of reference in allthe figures.

The object of this invention is the production of an efficient andserviceable steam-trap that shall be positive in its action, not liableto get readily out of order, and in which the governing-valve shall bereadily accessible for cleaning and renewal when necessary. Toaccomplish this result I construct this trapv essentially of an oblongcasing A, having on its upper edge a flange A', provided Vwithslot-holes a for the passage of screw-bolts A", by means of which acover B is secured to the casing, as clearly shown in Fig. 1. Near theupper edge of this casing A, I provide a boss O, into which leads asupply-pipe C', which conveys the water of condensation from any heatingor the like system to the interior of the casing, said pipe having anupwardlyturned elbow C, which leads Athis water npwardly in the casing.This elbow may be screwed onto the pipe C', or it may be formed in onepiece with the casing, as shown in the drawings. Near the bottom of .thecasing A there is a further boss D, into which a governing-valve isscrewed, consisting of a shell E,havin ga screw-threaded shank E ,bywhich it is secured in the boss D, and its opposite end externallyscrew-threaded to receive a cap E. Within this casing and concentrictherewith is a tube F', within which is located the valve-stem F, havingon its end aremovable disk F, held to the valve-stern by the nut f, anda slightly-elastic packing f which, scati'ng against the end of saidtube F', closes the passage through the same.

O11 the end ofthe valve-stem, which is made triangular for obviousreasons, there is formed an eye f, wherewith engages the double eye g ofa link G, which, with itsopposite double eye g', connects with a furtherlink G', which latter link engages an abutment H, secured to the bottomot' the casing A by the tap-bolt h. The two links G G are securedtogether by a bolt b, to which/is also connected the double eye 't' of aconnecting-rod I,which, with its upper end, connects with a lever J by abolt j in the slotted aperture j in said lever. This lever issubstantially cross-shaped, the two arms J. of which have on their outerends knife-edge journals j', resting in bearings a', formed on the inner.opposite sides ot' the casing A, downwardly-projecting lugs B on thecover B serving to keep these journals in their bearings.

Upon the end of the lever J is placed a counter-weight K, while itsopposite end is formed into a receiver or pot L, the entire lever, withits arms and the pot, being formed integral in the process of casting toattain cheapness of construction.

The operation of this trap is substantially as follows: In its normalcondition the pot is in its highest position, being stopped by the elbowC, against the under side of which it rests, with the valve in thevalve-casing open, as shown in Fig. 3. If now water of condensationenters the trap-casing through the pipe C and elbow O, it will dischargeagainst the cover and there being defiected will fill the pot L. Thepot, being now heavier than the counter-weight K, will descend andthereby close the valve Fv through the connectng-rod'and the links in anobvious manner. Water will now accumulate'in the casing A and graduallyioat the pot L, which,

rising, will open the valve F and allow the water to discharge from thenozzle e. rIhis will again cause the pot to descend and to close orpartly close the valve F, the alternate action, as described,resuliingin the governing of the discharge as long as water continues toflow to the trap.

It will be observedathat by locating the valve-casing on the outside ofthe trap-casing I am enabled at all times to reach the packing of thevalve by removing the cap on the valveeasing without opening thetrapcasing. Repairs may therefore be made, when necessary, in theshortest possible time wit-hout disturbing any of the pipes leading tothe trap or breaking a single joint connected therewith.

This feature is a very important one in traps,

and it contributes largely to its success.

Another feature of this trap is the upward discharge of the waterentering the trap. lleretofore where in traps the discharge wasdownwardly into the pot the force of the entering water and steam wouldexpel the water from the potand thereby render its action uncertain andvery violent, owing to the pot being too light to act with the necessarysensitiveness and precision to produce the best results in the dischargeof the water and the trapping of the steam.

A further feature in this trap is in the arrangement of thegoverning-valve, wherein the pressure of the Water or steam tends toopen the same and thereby assist the pot in its action and making itsoperation more positive.

My steam-trap as now constructed is perfect in its action, simple inconstruction, and cheaply produced.

Having thus fully described my invention, I claim as new and desire tosecure to me by Letters Patent of the United Statesl. In a steam-trap,the combination, with the trap-casing having the upwardly-pointingelbow, of the cover for the casing, the pvoted lever, the counter-weightthereon, the pot on its opposite end, the connecting-rod pivoted to saidlever, the links, the abutment, and the valve-casing having the valveconnected with one of said links, as and for the purpose set forth.

2. In a steam-trap, the combination, with the trap-easing, of theregulating-valve consisting of the casing E, having the nozzle e and thecap E', the tubular valve-seat F centrally within said casing, thevalve-stern F, having the removable disk F and elastic packing f', andsuitable mechanism for operating said valve-stem by a pivoted floatpot,as stated.

In testimony that I claim the foregoing as my invention I have heretoset my hand in the presence of two subscribing witnesses.

ROBERT NV. CLARK.

Attest:

MICHAEL J. STARK, \VM. O. STARK.

